In some very small environments (home networks for example), you might have a router handeling all of the DHCP roles, but as the organization grows, you want to be able to manage devices and their IP addresses.A very popular reason to use DHCP reservations is for devices such as printers.
How to setup DHCP on a Windows Server 2008 R2 server and join a computer to a domain.
Before you begin troubleshooting Active Directory Federation Services (AD FS) 2.0, ensure that you can provide administrative credentials.
You should also verify that AD FS 2.0 is set up and running properly.
There are many PC owners who think every time they face a problem with computer, they should contact professional help.
True, but not every problem needs to be addressed by a computer expert.